I don't know how to post it, but isn't it not accurate after 10 min anyway?

Ok, I know which is which, it is still slightly lightly, but not much. For me, it's really important, because dealing with MAJOR MF. Cannot BD an extra day early. I am testing every few hours. If it's equally dark tonight, will BD tonight, if not, will wait until tomorrow. Thanks. Will check out FF also. xoxo BD